For the majority of applications, it is important to maintain a stable pH. Alkalinity is a measure of the ability of the water to resist changes in pH, this is also known as buffering.
Alkalinity is made up of calcium and magnesium carbonates, bicarbonates, chlorides and sulfates, however it is conventionally always quoted as mg/L CaCO3.
Alkalinity can be measured as the total or M-alkalinity which measures all the hydroxide, carbonate and bicarbonate ions. The P-alkalinity only measures the hydroxide and carbonate ions. The M- and P-alkalinity measurements together can be used to calculate the O-alkalinity which is a measure of the hydroxide ions.
The Photometer 7500 is Palintest’s top range photometer covering all major water quality parameters, with more than 80 test methods.
The Pooltest 6 provides simple and effective pool testing for service engineers and pool managers, with all the tests required for a water balance calculation.